Data processing terminal device for storing encrypted journal data and
decrypting the data
    1.
    发明授权
    Data processing terminal device for storing encrypted journal data and decrypting the data 失效
    数据处理终端装置,用于存储加密的日志数据和解密数据

    公开(公告)号:US4748557A

    公开(公告)日:1988-05-31

    申请号:US902885

    申请日:1986-09-02

    摘要: A data processing terminal device is on-line connected to a host computer and records on journal paper journal data obtained as a result of communication with the host computer. Data is encrypted, and encrypted data is exchanged between the terminal device and the host computer. An IC card connected to the terminal device receives the encrypted data from the host computer, decrypts the data, modifies it and records the data on a recording medium. The terminal device records decrypted data on a journal paper. By comparing the journal data with it's modified data recorded on the IC card, journal data alteration can be easily detected.

    摘要翻译: 数据处理终端设备在线连接到主计算机,并记录作为与主计算机进行通信的结果获得的日记纸日志数据。 数据被加密,并且在终端设备和主机之间交换加密数据。 连接到终端设备的IC卡从主计算机接收加密的数据,解密数据,对其进行修改并将数据记录在记录介质上。 终端设备在日记纸上记录解密的数据。 通过将日志数据与记录在IC卡上的修改数据进行比较,可以容易地检测到日志数据更改。

    IC card and issuing apparatus allowing multiple applications
    4.
    发明授权
    IC card and issuing apparatus allowing multiple applications 失效
    IC卡和发卡设备允许多种应用

    公开(公告)号:US5729717A

    公开(公告)日:1998-03-17

    申请号:US479462

    申请日:1995-06-07

    摘要: A card contains an IC chip having a CPU, a memory, etc. When the card is inserted into a terminal device, it is connected to a host computer. Under this condition, the data in the memory of the IC card is processed by the host computer. The memory is manufactured in such a way that the memory area is segmented into a plurality of zones. An access controller for the memory is provided in the IC chip. In issuing the card, the access condition of each zone (for example, an assortment of access people and/or a type of access terminal) is programmed into the access controller by a card issuer.

    摘要翻译: 卡包含具有CPU,存储器等的IC芯片。当将卡插入终端设备时,它被连接到主计算机。 在这种情况下,IC卡的存储器中的数据由主计算机处理。 存储器以这样的方式制造,即存储区域被分割成多个区域。 在IC芯片中提供存储器的访问控制器。 在发卡时,卡片发行者将访问控制器编程到每个区域的访问条件(例如,各种访问人员和/或一类接入终端)。